"Drinking water in the city of Douala is like a treasure," says Cédric Meka, who is filling water bottles from a water point at the Guinness brewery in Bassa, the economic capital of Cameroon. With the demand for water far greater than the supply, private contractors are starting to drill for water for those who can pay. "Some works are not carried out according to the rules of the art and this can lead to certain health risks," says a representative of the Ministry of Water for the Coastal region of Douala. IMAGES AND SOUNDBITES ARRANGED IN SEQUENCES